Soil organic carbon stock capacity in karst dolines under different land uses
نویسندگان
چکیده
The soil organic carbon (SOC) was determined in soils of enclosed karst depressions (dolines) (NW Dinaric Mts.) to define their potential for sequestration. SOC measured the forest, succession (scrubland), and grassland plots at bottom dolines four depths (0–40 cm) 40 cm layer stock calculated. We demonstrated that prevailing fine fractions, C/N ratio thickness play a positive role storage capacity regardless land use type. Grasslands have lowest (106 t/ha/40 cm), while highest is (130 cm). last are covered by shrub communities dominated Prunus spinosa, forming dense communities, typical abandoned croplands or meadows been impacted high levels nutrients during cultivation phase. At this stage, there no additional nutrient input studied plots, which lowers content increases ratio. where 116 cm. Given trend towards abandonment agricultural Kras Plateau (SW Slovenia), we can expect more overgrowth dolines, thus an increase stocks stabilization forest soils. In contrary, noticed alarming decrease grasslands urban land. 2020 12,538 lower than 2002. Although showed storage, contribution total very important. Since lack studies on doline soils, our research great importance novelty gives important background further landscapes worldwide.
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ژورنال
عنوان ژورنال: Catena
سال: 2022
ISSN: ['0008-7769', '1872-6887', '0341-8162']
DOI: https://doi.org/10.1016/j.catena.2022.106548